Device and method for communicating channel state information reference signal (CSI-RS) in wireless communication system

Abstract

A method for wireless communication by a terminal, a method for wireless communication by a base station, the terminal, and the base station, are provided. The method for wireless communication by the terminal includes receiving first information comprising a muting subframe interval, a subframe offset, and a muting position of a resource element in a resource block, checking presence of a data in a subframe, determining the resource element to be muted in the subframe based on the muting subframe interval, the subframe offset, and the muting position, if the data is present, and receiving the data on a physical downlink shared channel (PDSCH) based on the result of the determining step.

What is claimed is: 
     
       1. A method for wireless communication by a terminal, comprising:
 receiving first information comprising a muting subframe interval, a subframe offset, and a muting position of a resource element in a resource block; 
 checking presence of a data in a subframe; 
 determining the resource element to be muted in the subframe based on the muting subframe interval, the subframe offset, and the muting position, if the data is present; and 
 receiving the data on a physical downlink shared channel (PDSCH) based on the result of the determining step. 
 
     
     
       2. The method of  claim 1 , wherein the data is received based on the muting position if the resource element in the subframe is to be muted. 
     
     
       3. The method of  claim 2 , wherein the data is received on PDSCH except for the muting position, and the data is not received on the muting position. 
     
     
       4. The method of  claim 2 , wherein the data is mapped on PDSCH except for the muting position, and the data is not mapped on the muting position. 
     
     
       5. The method of  claim 1 , wherein the first information is generated based on second information for neighbor cell. 
     
     
       6. The method of  claim 5 , wherein the second information comprises channel state information reference signal (CSI-RS) pattern for neighbor cell. 
     
     
       7. A method for wireless communication by a base station, comprising:
 generating first information comprising a muting subframe interval, a subframe offset, and a muting position of a resource element in a resource block; 
 transmitting the first information to a terminal; and 
 transmitting a data on a physical downlink shared channel (PDSCH) based on the resource element to be muted in a subframe, 
 wherein the resource element is determined based on the muting subframe interval, the subframe offset, and the muting position. 
 
     
     
       8. The method of  claim 7 , wherein the data is transmitted based on the muting position if the resource element in the subframe is to be muted. 
     
     
       9. The method of  claim 8 , wherein the data is received on PDSCH except for the muting position, and the data is not received on the muting position. 
     
     
       10. The method of  claim 8 , wherein the data is mapped on PDSCH except for the muting position, and the data is not mapped on the muting position. 
     
     
       11. The method of  claim 7 , wherein the first information is generated based on second information for neighbor cell. 
     
     
       12. The method of  claim 11 , wherein the second information comprises channel state information reference signal (CSI-RS) pattern for neighbor cell. 
     
     
       13. A terminal, comprising:
 a transceiver configured to transmit and receive a signal; and 
 a controller configured to receive first information comprising a muting subframe interval, a subframe offset, and a muting position of a resource element in a resource block, check presence of a data in a subframe, determine the resource element to be muted in the subframe based on the muting subframe interval, the subframe offset, and the muting position, if the data is present, and receive the data on a physical downlink shared channel (PDSCH) based on the result of the determining step. 
 
     
     
       14. The terminal of  claim 13 , wherein the data is received based on the muting position if the resource element in the subframe is to be muted. 
     
     
       15. The terminal of  claim 14 , wherein the data is received on PDSCH except for the muting position, and the data is not received on the muting position. 
     
     
       16. The terminal of  claim 14 , wherein the data is mapped on PDSCH except for the muting position, and the data is not mapped on the muting position. 
     
     
       17. The terminal of  claim 13 , wherein the first information is generated based on second information for neighbor cell. 
     
     
       18. The terminal of  claim 17 , wherein the second information comprises channel state information reference signal (CSI-RS) pattern for neighbor cell. 
     
     
       19. A base station, comprising:
 a transceiver configured to transmit and receive a signal; and 
 a controller configured to generate first information comprising a muting subframe interval, a subframe offset, and a muting position of a resource element in a resource block, transmit the first information to a terminal, and transmit a data on a physical downlink shared channel (PDSCH) based on the resource element to be muted in a subframe, wherein the resource element is determined based on the muting subframe interval, the subframe offset, and the muting position. 
 
     
     
       20. The base station of  claim 19 , wherein the data is transmitted based on the muting position if the resource element in the subframe is to be muted. 
     
     
       21. The base station of  claim 20 , wherein the data is received on PDSCH except for the muting position, and the data is not received on the muting position. 
     
     
       22. The base station of  claim 20 , wherein the data is mapped on PDSCH except for the muting position, and the data is not mapped on the muting position. 
     
     
       23. The base station of  claim 19 , wherein the first information is generated based on second information for neighbor cell. 
     
     
       24. The base station of  claim 23 , wherein the second information comprises channel state information reference signal (CSI-RS) pattern for neighbor cell.